20012211000211 has 4 divisors (see below), whose sum is σ = 21065485263400. Its totient is φ = 18958936737024.

The previous prime is 20012211000181. The next prime is 20012211000253. The reversal of 20012211000211 is 11200011221002.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 20012211000211 - 2¹⁷ = 20012210869139 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20012211000191 and 20012211000200.

It is not an unprimeable number, because it can be changed into a prime (20012211006211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 526637131566 + ... + 526637131603.

It is an arithmetic number, because the mean of its divisors is an integer number (5266371315850).

Almost surely, 2^{20012211000211} is an apocalyptic number.

20012211000211 is a deficient number, since it is larger than the sum of its proper divisors (1053274263189).

20012211000211 is a wasteful number, since it uses less digits than its factorization.

20012211000211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1053274263188.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 20012211000211 its reverse (11200011221002), we get a palindrome (31212222221213).

The spelling of 20012211000211 in words is "twenty trillion, twelve billion, two hundred eleven million, two hundred eleven", and thus it is an aban number.